Comparison

Flat Pattern Bend Calculator vs Circle & Diameter Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Flat Pattern Bend Calculator

This app provides accurate flat pattern layouts for complex sheet metal shapes and transitions. It simplifies calculations for cones, frustums, cylinders, and various transition pieces, saving time and reducing errors in fabrication projects.

Highlights
  • Cone calculations
  • Frustum calculations
  • Truncated cylinder layouts
  • Bend allowance calculations
  • Transition piece generation
  • Complex shape patterns
Features
Read full description

Unlock the power of advanced sheet metal calculations right at your fingertips. Flat Pattern Bend Calculator is a comprehensive tool designed for engineers, fabricators, and designers who need quick and accurate flat pattern layouts for a variety of complex shapes and transitions. This app simplifies complex metal sheet calculations, enabling users to accurately calculate flat pattern bends for various shapes and structures ► Key Features: Cone Calculations: Easily generate flat patterns for conical shapes. Frustum Eccentric (Parallel & Angle): Compute flat patterns for both parallel and angled eccentric frustums with precision. Truncated Cylinder: Obtain accurate layouts for truncated cylindrical shapes. Bend Allowance Calculations: Calculate bend allowances and deductions for various angles to ensure perfect bends every time. ► Transition Pieces: Rectangle to Circle: Seamlessly transition between rectangular and circular shapes. Rectangle to Circle Eccentric: Handle off-center transitions with ease. Circle to Rectangle: Convert circular shapes to rectangular patterns effortlessly. Rectangle to Rectangle: Calculate flat patterns for rectangular transitions. Complex Shapes: Pants & Pants Eccentric: Design complex bifurcated ducts and fittings. Breeches: Create layouts for Y-shaped connections. Tees: Generate patterns for T-shaped junctions. Pyramid: Calculate flat patterns for pyramid-shaped objects. Auger: Design helical screw patterns with precision. Sphere: Compute flat layouts for spherical shapes. Flange: Generate accurate flange patterns for pipe fittings. Why Choose Our App? • Efficiency: Reduce manual calculations and save valuable time on your projects. • Accuracy: Minimize errors with precise computations tailored to your specific needs. • User-Friendly Interface: Intuitive design makes complex calculations accessible to everyone. • Versatility: Ideal for HVAC ductwork, industrial piping, metal roofing, and custom fabrication projects. • Instant Results: Get immediate calculations to accelerate your workflow. Who Can Benefit? • Sheet Metal Fabricators • Mechanical Engineers • HVAC Professionals • Metalworkers and Welders • Industrial Designers • Students and Educators in Engineering Fields Take Your Fabrication Projects to the Next Level! Say goodbye to cumbersome manual calculations and hello to streamlined efficiency. Download the Sheet Metal Flat Pattern Calculator now and experience the future of metal fabrication. Download Today and Start Shaping Your Success! Privacy Policy : https://forms.gle/dnBUgnpqw4AREio97 Terms of Use : https://forms.gle/2uy2JqJa2JjkTZpo8

About

Circle & Diameter Calculator

Instantly calculate a circle's diameter, radius, circumference, and area. This tool is perfect for students, DIYers, and anyone needing quick, accurate circular measurements. It features an intuitive interface with automatic result updates.

Highlights
  • Calculate radius, diameter, circumference, and area
  • Instant calculations with automatic result updates
  • Input any known value to find others
  • Accurate geometry formulas using Pi
  • Support for decimal numbers and international input
  • Simple and intuitive interface
Features
Read full description

# Circle Calculator: Diameter Calculate circle diameter, radius, circumference, and area instantly with a simple, accurate, and easy-to-use circle calculator. Whether you're working on geometry problems, studying mathematics, measuring circular objects, or performing everyday calculations, Circle Calculator: Diameter makes finding circle measurements quick and convenient. **ALL CIRCLE CALCULATIONS IN ONE APP** Enter any known circle measurement and instantly calculate the remaining values: - **Radius** – Calculate the radius of a circle from its diameter, circumference, or area. - **Diameter** – Find the diameter using the radius, circumference, or area. - **Circumference** – Calculate the distance around a circle using any known measurement. - **Area** – Find the area of a circle from its radius, diameter, or circumference. **KEY FEATURES** - Instant calculations between radius, diameter, circumference, and area. - Four interactive input fields with automatic result updates. - Enter any known value to calculate the other three measurements. - Accurate circle geometry formulas using Pi (π). - Support for decimal numbers and precise calculations. - International decimal input support, including periods, commas, and Arabic decimal separators. - Automatic number formatting based on your device's regional settings. - Simple, intuitive interface with clearly displayed results. - No complicated menus or unnecessary steps. **PERFECT FOR EVERYDAY CALCULATIONS** Circle Calculator: Diameter is a practical tool for: - Students learning circle geometry and mathematics. - Teachers explaining radius, diameter, area, and circumference. - DIY projects involving circular measurements. - Engineering and technical calculations. - Construction, design, and craft projects. - Anyone who needs a quick circle measurement calculator. **SIMPLE AND FAST** No need to remember multiple circle formulas or perform calculations manually. Enter a radius, diameter, circumference, or area, and the calculator automatically updates the remaining three values. Switch between measurements, compare results, and solve circle geometry problems in seconds. **YOUR EVERYDAY CIRCLE GEOMETRY TOOL** From basic math exercises to practical measurements, Circle Calculator: Diameter brings essential circle calculations together in one convenient app. Calculate radius, diameter, circumference, and area anytime with a fast and straightforward calculator.

Screenshots

Flat Pattern Bend Calculator4 screens
Circle & Diameter Calculator4 screens

Verdict

The call

The clearest difference is review sentiment: Circle & Diameter Calculator at 100% against Flat Pattern Bend Calculator's 47%. Circle & Diameter Calculator also leads on in-app purchases (none vs 6) and ads (none vs shown). Flat Pattern Bend Calculator's advantage is update cadence (every 6 weeks vs every 20 months) and ratings volume (152 vs 1). On price, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Flat Pattern Bend Calculator sells 6 in-app purchases, starting at $4.99 per month. Circle & Diameter Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Circle & Diameter Calculator holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Flat Pattern Bend Calculator has 152 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 47% of Flat Pattern Bend Calculator's written reviews are positive against 100% of Circle & Diameter Calculator's.

UpkeepUpdate frequency

Flat Pattern Bend Calculator ships an update every 6 weeks, Circle & Diameter Calculator every 20 months. The most recent releases landed on November 13, 2026 and November 12, 2026 respectively.

Scorecard7 real differences · 3 level
Flat Pattern Bend Calculator versus Circle & Diameter Calculator: the parameters behind the verdict, then further details
ParameterFlat Pattern Bend CalculatorCircle & Diameter Calculator
PriceFreeFree
Rating4.6 (152 ratings)5.0 (1 ratings) — better
Positive reviews46.9% of reviews100.0% of reviews — better
Number of ratings152 — better1
Update frequencyEvery 6 weeks — betterEvery 20 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015
Further details — not scored
Size91 MB10 MB
Age rating4+4+
DeveloperBhavinkumar SatashiyaKrzysztof Gwiazda

Customer experience

Flat Pattern Bend Calculator

All ratings152 ratings
Positive89.5%
Neutral1.3%
Negative9.2%
Written reviews32 reviews
Positive46.9%
Neutral6.3%
Negative46.9%

Circle & Diameter Calculator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

6 purchases

Flat Pattern Bend Calculator

Subscriptions5
  • MONTHLY UNLOCK$4.991 Month
  • Weekly Subscription$4.997 Days
  • Offer : Yearly Access$19.991 Year
Show 2 more
  • YEARLY UNLOCK3 Days trial$29.991 Year
  • Yearly Access$39.991 Year
One-time1
  • LIFETIME UNLOCK$49.99
None

Circle & Diameter Calculator

No in-app purchases

Questions

Is Flat Pattern Bend Calculator free?
Flat Pattern Bend Calculator is free to download, with in-app purchases available.
Is Circle & Diameter Calculator free?
Circle & Diameter Calculator is free to download, with no in-app purchases.
Which has better reviews, Flat Pattern Bend Calculator or Circle & Diameter Calculator?
Circle & Diameter Calculator is rated higher. Flat Pattern Bend Calculator averages 4.6 out of 5 from 152 ratings, while Circle & Diameter Calculator averages 5.0 from 1 ratings.
Do Flat Pattern Bend Calculator or Circle & Diameter Calculator have ads?
Flat Pattern Bend Calculator shows ads; Circle & Diameter Calculator does not.
Which is updated more often, Flat Pattern Bend Calculator or Circle & Diameter Calculator?
Flat Pattern Bend Calculator ships an update every 6 weeks, and Circle & Diameter Calculator every 20 months. Most recently, Flat Pattern Bend Calculator was updated on November 13, 2026 and Circle & Diameter Calculator on November 12, 2026.

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